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/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file chmemcore.h
* @brief Core memory manager macros and structures.
*
* @addtogroup memcore
* @{
*/
#ifndef _CHMEMCORE_H_
#define _CHMEMCORE_H_
/**
* @brief Memory get function.
* @note This type must be assignment compatible with the @p chMemAlloc()
* function.
*/
typedef void *(*memgetfunc_t)(size_t size);
/**
* @name Alignment support macros
*/
/**
* @brief Alignment size constant.
*/
#define MEM_ALIGN_SIZE sizeof(stkalign_t)
/**
* @brief Alignment mask constant.
*/
#define MEM_ALIGN_MASK (MEM_ALIGN_SIZE - 1)
/**
* @brief Alignment helper macro.
*/
#define MEM_ALIGN_PREV(p) ((size_t)(p) & ~MEM_ALIGN_MASK)
/**
* @brief Alignment helper macro.
*/
#define MEM_ALIGN_NEXT(p) MEM_ALIGN_PREV((size_t)(p) + MEM_ALIGN_MASK)
/**
* @brief Returns whatever a pointer or memory size is aligned to
* the type @p align_t.
*/
#define MEM_IS_ALIGNED(p) (((size_t)(p) & MEM_ALIGN_MASK) == 0)
/** @} */
#if CH_USE_MEMCORE || defined(__DOXYGEN__)
#ifdef __cplusplus
extern "C" {
#endif
void _core_init(void);
void *chCoreAlloc(size_t size);
void *chCoreAllocI(size_t size);
size_t chCoreStatus(void);
#ifdef __cplusplus
}
#endif
#endif /* CH_USE_MEMCORE */
#endif /* _CHMEMCORE_H_ */
/** @} */
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